Railway-car underframe.



Patented Dec. 21, 1915.

3 SHEETS-SHEET 1.

C. A. LINDSTROIVI.

RAILWAY CAR UNDERFRAME.

APPLICATION FILED Nov` 12, 1913` c.. A. LINDSTRO'M.

RAILWAY CAR UNDERFRAME.

APPLICATON FILED NOV. 12. 1913.

Patented Dec. 2l, 1915.

3 SHEETS-SHEET 3.

IOLUMHM pLANouRAPH ca. WASHINGTON, n4 c.

TUTTTEM STATT@ PATENT FFT@E,

CHARLES A. LINDSTBM, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO PRESSED STEEL CAR. COMPANY, 0F PITTSBURGH, HENNS'LVANIA, A CORPORATON 0F NEW JERSEY.

RAILVAY-CAR UNDERFRAME.

'mea-,rer

speci-eration of Leners Patent.

Patented Dec.. 21, 1915.

To all whom z5 may concern Be it known that I, CHARLES A. LrND-- s'rRM, a citizen of the United States, residing at-No. 138 Stratford avenue, Pittsburgh, (East End,) in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Railway Car Underframes, of which the following is a-full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this -bine the bolster, center sill and draft sill in such a manner as to reduce to a minimum the number of parts used in such combination, and also reduce the number of means used for securing' such parts together.

.Anotherl object of the invention is to provide a bolster member having a pocket portion, formed in yits web, for the reception of the center brace and ends of the draft sills, the outer side of said pocket portion being` secured in a suitable manner tothe end portion of the center sill.

A further object of the invention is to combine the bolster, center brace and draft sills, in such a manner as to facilitate the removal of the draft sill and center brace from the bolster, in case of removal for repairs through damage or other causes.

l.Vith these and other objects in view, the present invention consists in the combination a-nd arrangement of parts, as will `be hereinafter more fully described, shown on the accompanying drawings, and particu* larly pointed out in the appended claims, it being understood that changes in the form, proportion, size and minor details may be made, within the scope of the claims, without departing from the spirit or sacrificing anv of the advantages of the invention.

Referring now to the drawings, in which like reference characters refer to like parts and in which- Figure 1 is a plan view of a portion of an underframe embodying the invention; Fig.

2 is a sectional View taken on the line 2-2 of Fig. 1; Figs. 3, 4 and 5 are cross sectional views on the lines 3-3, 4-4 and 5*5 respectively of Fig. 1, and Fig. 6 is an enlarged detail sectional view on the line 6-6 of F ig. 2.

Referringnow in detail to thedrawings1 1 indicates the center sill which may be of rolled 1.' section, or as shown in the several figures of the drawings, may be built up of commercial bars and plates.

2 indicates the web plate of the center sill, to which are secured the top or compression members 3, 3 and the bottom or tension members 4, 4. The to a or compression members are preferably of bulb section.

5 yindicates the bolster which comprises a single element preferably of I section for the greater part of its length. The top member 6 and the bottom members 7, 7 of this bolster are connected throughout their length by the webs 8, 8 and at their outer ends are connected by the end members 9, 9, which end members are provided with brackets 10, 10` to which the side silla 11, 11 may be secured. rlhese end members are also provided with extensions 12, 12, which form roping and jacking portions, the use of which has been fully set forth in a `copendinp; application, and, therefore, needs no further description in this application. At the central portion of the bolster a recess 13 is provided for the reception of the ends of the draft sills 14, 14 and the center brace member 15. This recess is formed by the side walls 16, 16, backwall 17 which are offset portions of the web 8, and the top member 6. The top member' 6 extends the full. length of the bolster, and where it bridges the recess 18, is extended inwardly toward the transverse center line of the car and is riveted or otherwise secured to the compression members 3, 3. The wall 17 is provided with a vertical tlanpje 18, which is adapted to contact with one side of the center sill, and to strengthen this danse laterally, ribs or webs 19 are provided. On the other side of the center sill an angular member 2O is provided, the legs 21 and 22 of which are preferably at right angles to each other, and strengthened bv ribs or webs 23. The center sill 1, flange 18 of the bolsters 5 and the leg 22 of the member 2O are all secured together by means 24, which pass through all of said members.

The center brace member yis preferably provided With a flat horizontal bottom 'portion 25, having on its underside an integral bearing 26. This center brace member is also provided with a horizontal top portion the king pin (not shown). The bottom porfao tion 25 of the center brace member is secured by any suitable means to the bottom members 7, 7 of the bolster 5, on either side of the recess 13, and is also extended inwardly toward the transverse center line of Ythe carand secured to the tension angles 4, 4 of the center sill 1. This center brace .20l

member is also secured to the top member 6 and to the wall 17 of the bolster 5, the securing means on one side of the longitudinal center `line of the underframe, passing through the end 29 of the center brace. the Wall 17 of the bolster 5 and the leg 21 of the member 20, and on the other side of said center line, the securing means passing through the end 29 of the center brace member, and the Wall 17 of the bolster 5, thus adding to the rigidity of the connection between the center sill l, bolster 5 and center brace member 15.

The draft sills 14 are preferably of channel section and at their outer ends are connected to the end sill 31 by any suitable means. Thev inner ends of the draft sills are secured Within the bolster to the center brace member` 15.

From the foregoing it Will be seen that a lvery rigid connection is made between the center sill 1, bolster 5 and draft sills 14 Without securing such draft sills directly to the bolster.

32 indicates the cross beams, which are preferably of rolled I section and extend continuously from side to side of the car, and at their ends form seats for the side sills 11, 11. Where the cross beams pass through the Web of the center sill, bracket members 33, 83 are provided which are securedto said cross beams and sill.

I-laving thus described the invention, what I claim as new and desire to secure by Letters Patent is:

1. In a car underframe, the combination of a single rigid bolster element extending across said underframe, said bolster element having a recess formed therein intermediate its ends, a center brace member adapted to fit and a bolster having a recess formed therein adapted to receive said center brace member and draft sills, said draft sills terminating Within said recess.

3. In a car underframe, a center brace member, a center bearing integral with said center brace member, draft sills having their inner end portions secured to said center brace member and a bolster having a recess formed therein adapted to receive said center brace member and draft sills.

4. In a car underframe, a bolster, draft sills, a center sill terminating short of said draft sills and a center brace member having a substantially horizontal portion adapted to be secured to said bolster, draft sills and center' sill.

5. In a car underframe, a bolster, a vertically disposed flange on said bolster at the longitudinal center line of said underframe, a center sill secured to said flange, a center brace member secured to said bolster and center sill, draft sills, and means for securing said draft sills to said center brace member.

6. In a car underframe, a center brace member having horizontal top and bottom portions, vertical portions connecting said top and bottom portions, a bolster having a recess formed therein for the reception of said center brace member, draft sills, and means for securing said draft sills to said bottom portion and to said vertical portions of said center brace member.

7. In a car underframe, a bolster having a recess formed therein, a center brace member secured Within said recess, draft sills terminating Within said recess, and means for securing said draft sills to said center brace member.

8. In a car underframe, draft sills, a center sill, a bolster and a member having a portion within said bolster and a portion adapted to connect said sills and bolster together.

9. In a car underframe, a bolster having a portion of its web offset to form a recess, a center brace member secured to said bolster Within said recess, and draft sills secured to said center brace member.

10. A bolster of substantially I shape in cross -section having a portion of its web offset to form a recess, a center brace me1nber secured to said bolster Within said recess, and longitudinal sills secured to said center brace member.

11. A bolster of substantially I shape in cross section having a recess formed in its underside, a center brace member secured to said bolster within said recess, and longitudinal sills secured to said center brace member, saidsills terminating within said recess.

12. In a car underframe, a bolster having a portion of its Web offset to form the side and back Walls of a recess, a vertically disposed lange integral With said back Wall and a center sill secured to said flange, a center brace member in said recess and draft sills Secured to said center brace member.

13. In a car underframe, a bolster, a center sill connected with said bolster, a center brace member having portions secured to said bolster and said center sill, and draft sills secured to said center brace member.

14. In a car underframe, a bolster having a recess, said recess having side and back Walls, a flange projecting outwardly from said back Wall, a center sill secured to said flange and terminating short of said wall, a center brace member secured to said bolster Within said recess and draft sills secured to said center brace member.

In testimony whereof l ailix my signature in presence of two Witnesses.

' CHARLES A. LINDSTROM. Witnesses:

FRANK E. MILLER, MARGARET SUMMERBELL.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

